[v4] perf annotate: Support --code-with-type on TUI

[PATCH v4 4/9] perf annotate: Simplify width calculation in annotation_line__write()

Posted by Namhyung Kim 6 months, 2 weeks ago

The width is updated after each part is printed.  It can skip the output
processing if the total printed size is bigger than the width.

No function changes intended.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/annotate.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index c21152710148b68c..d69e406c1bc289cd 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1993,6 +1993,7 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
 					   symbol_conf.show_nr_samples ? "Samples" : "Percent");
 		}
 	}
+	width -= pcnt_width;
 
 	if (notes->branch) {
 		if (al->cycles && al->cycles->ipc)
@@ -2056,11 +2057,12 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
 			obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf);
 		}
 	}
+	width -= cycles_width;
 
 	obj__printf(obj, " ");
 
 	if (!*al->line)
-		obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
+		obj__printf(obj, "%-*s", width, " ");
 	else if (al->offset == -1) {
 		if (al->line_nr && annotate_opts.show_linenr)
 			printed = scnprintf(bf, sizeof(bf), "%-*d ",
@@ -2069,7 +2071,7 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
 			printed = scnprintf(bf, sizeof(bf), "%-*s  ",
 					    notes->src->widths.addr, " ");
 		obj__printf(obj, bf);
-		obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
+		obj__printf(obj, "%-*s", width - printed + 1, al->line);
 	} else {
 		u64 addr = al->offset;
 		int color = -1;
@@ -2112,9 +2114,11 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
 		if (change_color)
 			obj__set_color(obj, color);
 
+		width -= printed + 3;
+
 		disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
 
-		obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
+		obj__printf(obj, "%-*s", width, bf);
 
 		(void)apd;
 	}
-- 
2.50.1

Re: [PATCH v4 4/9] perf annotate: Simplify width calculation in annotation_line__write()

Posted by Ian Rogers 6 months, 2 weeks ago

On Fri, Jul 25, 2025 at 12:38 PM Namhyung Kim <namhyung@kernel.org> wrote:
>
> The width is updated after each part is printed.  It can skip the output
> processing if the total printed size is bigger than the width.
>
> No function changes intended.
>
> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
> ---
>  tools/perf/util/annotate.c | 10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
> index c21152710148b68c..d69e406c1bc289cd 100644
> --- a/tools/perf/util/annotate.c
> +++ b/tools/perf/util/annotate.c
> @@ -1993,6 +1993,7 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
>                                            symbol_conf.show_nr_samples ? "Samples" : "Percent");
>                 }
>         }
> +       width -= pcnt_width;
>
>         if (notes->branch) {
>                 if (al->cycles && al->cycles->ipc)
> @@ -2056,11 +2057,12 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
>                         obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf);
>                 }
>         }
> +       width -= cycles_width;
>
>         obj__printf(obj, " ");
>
>         if (!*al->line)
> -               obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
> +               obj__printf(obj, "%-*s", width, " ");
>         else if (al->offset == -1) {
>                 if (al->line_nr && annotate_opts.show_linenr)
>                         printed = scnprintf(bf, sizeof(bf), "%-*d ",
> @@ -2069,7 +2071,7 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
>                         printed = scnprintf(bf, sizeof(bf), "%-*s  ",
>                                             notes->src->widths.addr, " ");
>                 obj__printf(obj, bf);
> -               obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
> +               obj__printf(obj, "%-*s", width - printed + 1, al->line);

This doesn't seem to line up with the commit message, should width be
updated prior to this call?

>         } else {
>                 u64 addr = al->offset;
>                 int color = -1;
> @@ -2112,9 +2114,11 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
>                 if (change_color)
>                         obj__set_color(obj, color);
>
> +               width -= printed + 3;

nit: For constants that like '+3' here and '+1' it'd be nice for a
comment just to say where the adjustment comes from.

Thanks,
Ian

> +
>                 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
>
> -               obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
> +               obj__printf(obj, "%-*s", width, bf);
>
>                 (void)apd;
>         }
> --
> 2.50.1
>

Re: [PATCH v4 4/9] perf annotate: Simplify width calculation in annotation_line__write()

Posted by Namhyung Kim 6 months, 2 weeks ago

On Fri, Jul 25, 2025 at 05:30:04PM -0700, Ian Rogers wrote:
> On Fri, Jul 25, 2025 at 12:38 PM Namhyung Kim <namhyung@kernel.org> wrote:
> >
> > The width is updated after each part is printed.  It can skip the output
> > processing if the total printed size is bigger than the width.
> >
> > No function changes intended.
> >
> > Signed-off-by: Namhyung Kim <namhyung@kernel.org>
> > ---
> >  tools/perf/util/annotate.c | 10 +++++++---
> >  1 file changed, 7 insertions(+), 3 deletions(-)
> >
> > diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
> > index c21152710148b68c..d69e406c1bc289cd 100644
> > --- a/tools/perf/util/annotate.c
> > +++ b/tools/perf/util/annotate.c
> > @@ -1993,6 +1993,7 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
> >                                            symbol_conf.show_nr_samples ? "Samples" : "Percent");
> >                 }
> >         }
> > +       width -= pcnt_width;
> >
> >         if (notes->branch) {
> >                 if (al->cycles && al->cycles->ipc)
> > @@ -2056,11 +2057,12 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
> >                         obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf);
> >                 }
> >         }
> > +       width -= cycles_width;
> >
> >         obj__printf(obj, " ");
> >
> >         if (!*al->line)
> > -               obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
> > +               obj__printf(obj, "%-*s", width, " ");
> >         else if (al->offset == -1) {
> >                 if (al->line_nr && annotate_opts.show_linenr)
> >                         printed = scnprintf(bf, sizeof(bf), "%-*d ",
> > @@ -2069,7 +2071,7 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
> >                         printed = scnprintf(bf, sizeof(bf), "%-*s  ",
> >                                             notes->src->widths.addr, " ");
> >                 obj__printf(obj, bf);
> > -               obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
> > +               obj__printf(obj, "%-*s", width - printed + 1, al->line);
> 
> This doesn't seem to line up with the commit message, should width be
> updated prior to this call?

Fair enough.

> 
> >         } else {
> >                 u64 addr = al->offset;
> >                 int color = -1;
> > @@ -2112,9 +2114,11 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
> >                 if (change_color)
> >                         obj__set_color(obj, color);
> >
> > +               width -= printed + 3;
> 
> nit: For constants that like '+3' here and '+1' it'd be nice for a
> comment just to say where the adjustment comes from.

Sure, will do.

Thanks,
Namhyung
 
> > +
> >                 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
> >
> > -               obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
> > +               obj__printf(obj, "%-*s", width, bf);
> >
> >                 (void)apd;
> >         }
> > --
> > 2.50.1
> >

[PATCH v4 1/9] perf annotate: Rename to __hist_entry__tui_annotate()
[PATCH v4 2/9] perf annotate: Remove __annotation_line__write()
[PATCH v4 3/9] perf annotate: Pass annotation_print_data to annotation_line__write()
[PATCH v4 4/9] perf annotate: Simplify width calculation in annotation_line__write()
[PATCH v4 5/9] perf annotate: Add --code-with-type support for TUI
[PATCH v4 6/9] perf annotate: Add 'T' hot key to toggle data type display
[PATCH v4 7/9] perf annotate: Show warning when debuginfo is not available
[PATCH v4 8/9] perf annotate: Hide data-type for stack operation and canary
[PATCH v4 9/9] perf annotate: Add dso__debuginfo() helper